Litter mat



FIG 1 is a top perspective view of a litter mat showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a right side elevation view thereof, the left side elevation being identical.

The broken lines and the areas within the broken lines in the drawings depict portions of the litter mat that form no part of the claimed design. 

CLAIM The ornamental design for a litter mat, as shown and described. 